What I see with Dak is more shoulder rotation on passes, less of an over the top delivery on certain throws and more of a compact delivery. He's throwing more of natural 3/4 delivery then straight over the top and that's helping him with his touch passes and his accuracy. Over the top kinda limits you. Not as much flexibility to throw or change your platform. You have to use the same mechanics or the throw ends up in the dirt or sailing on you. It's very precise but it's also what a lot of coaches taught young QBs for a long time. I think Dak has finally gotten with a staff who actually understands how and why you throw with certain throwing motions and how that actually works with stride, footwork, body rotation and the overarching idea of shorting up your delivery and why that's important. There is, of course, a lot more to it then this and coaches who know much more then I, have much more time and experience with this stuff, understand how to teach it and apply it. Dak, IMO, is working with those types of coaches now.
To tell the truth, I'm shocked that it has taken three full season to get him with these guys.
IDK, JMO.